alien_0 = {'color': 'green', 'points': 5}
alien_0['x_position'] = 0
alien_0['y_position'] = 25

print(f"The alien is {alien_0['color']}.")
alien_0['color'] = 'yellow'
print(f"The alien is now {alien_0['color']}.")

print(alien_0['points'])

print(alien_0)